| name | Hydrogen |
| latin | Hydrogenium |
| french | Hydrogéne |
| german | Wasserstoff |
| symbol | H |
| proton number | 1 |
| atomic weight | 1.00794 |
| Pauling electronegativity | 2.2 |
| electronic configuration | 1s1 |
| melting point | 14.01 K, -259.14°C, -434.45°F |
| boiling point | 20.28 K, -252.87°C, -423.17°F |
| group | 1 |
| period | 1 |
| state (by 20°C) | gas |
| oxidation states | -1, +1 |
| Year of discovery | Discoverer |
| 1766 | Henry Cavendish (1731-1810) |